Cited by 327Hippo pathway signaling and YAP/TAZCancer-related molecular mechanisms researchDevelopmental Biology and Gene Regulation

Yes-Associated Protein Up-regulates Jagged-1 and Activates the NOTCH Pathway in Human Hepatocellular Carcinoma

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Tschaharganeh, Darjus Felix, Chen, Xin, Latzko, Philipp, Malz, Mona, Gaida, Matthias Martin, Felix, Klaus, Ladu, Sara, Singer, Stephan +15 more·2013·Gastroenterology

Abstract

Background & aims Cancer cells often lose contact inhibition to undergo anchorage-independent proliferation and become resistant to apoptosis by inactivating the Hippo signaling pathway, resulting in activation of the transcriptional co-activator yes-associated protein (YAP). However, the oncogenic mechanisms of YAP activity are unclear.Methods By using cross-species analysis of expression data, the Notch ligand Jagged-1 (Jag-1) was identified as a downstream target of YAP in hepatocytes and hepatocellular carcinoma (HCC) cells. We analyzed the functions of YAP in HCC cells via overexpression and RNA silencing experiments. We used transgenic mice that overexpressed a constitutively activated form of YAP (YAP(S127A)), and measured protein levels in HCC, colorectal and pancreatic tumor samples from patients.Results Human HCC cell lines and mouse hepatocytes that overexpress YAP(S127A) up-regulated Jag-1, leading to activation of the Notch pathway and increased proliferation. Induction of Jag-1, activation of Notch, and cell proliferation required binding of YAP to its transcriptional partner TEA domain family member 4 (TEAD4); TEAD4 binding required the Mst1/2 but not β-catenin signaling. Levels of YAP correlated with Jag-1 expression and Notch signaling in human tumor samples and correlated with shorter survival times of patients with HCC or colorectal cancer.Conclusions The transcriptional regulator YAP up-regulates Jag-1 to activate Notch signaling in HCC cells and mouse hepatocytes. YAP-dependent activity of Jag-1 and Notch correlate in human HCC and colorectal tumor samples with patient survival times, suggesting the use of YAP and Notch inhibitors as therapeutics for gastrointestinal cancer. Transcript profiling: microarray information was deposited at the Gene Expression Omnibus database (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?token=jxepvsumwosqkve&acc=GSE35004).

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  • A number of inhibitors targeting YAP/TAZ-TEAD have been reported, including peptides such as super-TDU, and small molecules such as verteporfin and MGH-CP1.

    “Over the years, a number of inhibitors targeting YAP/TAZ-TEAD have been reported, including peptides such as super-TDU (173),437 and small molecules such as verteporfin (174) and MGH-CP1 (175).438–440”

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Authors
Tschaharganeh, D. F., Chen, X., Latzko, P., Malz, M., Gaida, M. M., Felix, K., Ladu, S., Singer, S., Pinna, F., Gretz, N., Sticht, C., Tomasi, M. L., Delogu, S., Evert, M., Fan, B., Ribback, S., Jiang, L., Brozzetti, S., Bergmann, F., Dombrowski, F., Schirmacher, P., Calvisi, D. F., & Breuhahn, K.
Affiliations
  • University Hospital Heidelberg (DE)
  • University of California, San Francisco (US)
  • University of Chieti-Pescara (IT)
  • Medizinische Fakultät Mannheim (DE)
  • University of Southern California (US)
  • Universität Greifswald (DE)
  • Sapienza University of Rome (IT)
Corresponding author
Breuhahn, Kai
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2013-06
Volume
144
Issue
7
Pages
1530-1542.e12
ISSN
0016-5085 (ISSN-L)
OpenAlex
W2060323466
Cited by
326
References
47
Citations by year
2026: 8 · 2025: 16 · 2024: 16 · 2023: 19 · 2022: 26 · 2021: 29 · 2020: 35 · 2019: 26 · 2018: 26 · 2017: 25 · 2016: 28 · 2015: 35 · 2014: 28 · 2013: 8 · 2012: 1
FWCI
19.34
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
YAP, Jagged1, Notch signaling, hepatocellular carcinoma, TEAD4, MST1/2, Hippo signaling pathway, colorectal cancer, pancreatic cancer, cell proliferation, patient survival, transcriptional coactivator, therapeutic target
MeSH terms
Serrate-Jagged Proteins, Jagged-1 Protein, YAP-Signaling Proteins, TEA Domain Transcription Factors, Animals, Calcium-Binding Proteins, DNA-Binding Proteins, Carcinoma, Hepatocellular, Humans, Liver Neoplasms, Membrane Proteins, Muscle Proteins, Phosphoproteins, Transcription Factors, Up-Regulation, Gene Expression Regulation, Neoplastic, Cell Cycle Proteins, Hepatocytes, Intercellular Signaling Peptides and Proteins, Cell Line, Tumor, Adaptor Proteins, Signal Transducing, Cell Proliferation, Mice, Receptors, Notch

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